Results 251 to 260 of about 5,874 (289)

Simulation of Equal-Channel Angular Extrusion Pressing

Materials Science Forum, 2006
Equal-channel angular (ECA) pressing is the main technique of the severe plastic deformation (SPD) method, applied for fabrication of bulk nanostructured metal materials. At the same time the practical realization of this technique is a rather challenging task.
Igor V. Alexandrov, I.N. Budilov, György Krallics, Hyoung Seop Kim, Seung Chae Yoon, A.A. Smolyakov, Alexander Korshunov, V.P. Solovyev   +7 more
openaire   +1 more source

Equal channel angular pressing of copper wire

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2014
A new development of equal channel angular pressing method to fabricate wire-formed samples has been proposed and experimented. In this approach, wire-formed specimen, which is inserted inside a polyurethane rubber pad material, has been pressed using conventional equal channel angular pressing die.
F Djavanroodi, M Sedighi, P Hashemi, M Ebrahimi   +3 more
openaire   +1 more source

Analyses of route Bc equal channel angular pressing and post-equal channel angular pressing behavior by the finite element method

Journal of Materials Science, 2010
Equal channel angular pressing (ECAP) process provides an efficient procedure for achieving ultrafine grained microstructures with excellent mechanical properties in metallic materials. In this article, a simulation scheme for predicting the mechanical behavior during and after ECAP was proposed.
Yoon, EY, Yoo, JH, Yoon, SC, Kim, YK, Baik, SC, Kim, HS   +5 more
openaire   +2 more sources

Densification and Conolidation of Powders by Equal Channel Angular Pressing

Materials Science Forum, 2007
In this study, bottom-up type powder processing and top-down type SPD (severe plastic deformation) approaches were combined in order to achieve both full density and grain refinement of metallic powders with least grain growth, which is considered as a bottle neck of the bottom-up method that uses the conventional powder metallurgy of compaction and ...
Seung Chae Yoon, Sun Ig Hong, Soon Hyung Hong, Hyoung Seop Kim   +3 more
openaire   +1 more source

Equal channel angular pressing/extrusion

2017
Numerous researches, made to improve mechanical properties of materials with plastic deformation, have brought scientist to discover and develop severe plastic deformation (SPD) technologies. The usage of SPD technologies result in getting ultrafine-graind microstructures of materials.
Keran, Zdenka, Nađ Nada, Piljek, Petar, Ciglar, Damir, Rožman, Mirko   +4 more
openaire   +2 more sources

Grain Fragmentation in Equal Channel Angular Pressed Copper

Materials Science Forum, 2010
A comparative experimental and simulation study of oxygen-free high conductivity copper produced by equal channel angular pressing (ECAP) one-pass has been carried out by using electron backscatter diffraction (EBSD) and a recently proposed grain refinement model. The grain size and misorientation distributions were extracted from the EBSD measurements.
Cheng Fan Gu, László S. Tóth, Benoît Beausir, Tim Williams, Chris H.J. Davies   +4 more
openaire   +1 more source

Equal Channel Angular Pressing in a Pearlitic Structured Steel

Materials Science Forum, 2007
Equal Channel Angular Pressing (ECAP) in a fully pearlitic structured steel 65Mn was successfully carried out at 923 K via route C in this study. The severe shear deformation of ECAP was accommodated by periodical bending, periodical shearing and shearing fracture etc in the pearlitic lamellae.
Jun Xia Huang, Jing Tao Wang
openaire   +1 more source

An Examination of the Deformation Process in Equal-Channel Angular Pressing

MRS Proceedings, 1999
AbstractIn the past decade, there has been an important emphasis in materials science on the production and use of ultrafine-grained materials. These materials offer wide-ranging advantages such as an improvement in strength at low temperatures and enhanced superplastic behavior at high temperatures.
Patrick B. Berbon, Minoru Furukawa, Zenji Horita, Minoru Nemoto, Terence G. Langdon   +4 more
openaire   +1 more source

Cryogenic forming of AA7075 by Equal‐Channel Angular Pressing

Materialwissenschaft und Werkstofftechnik, 2012
AbstractAs high strength aluminum alloys are generally hard to deform, the application of conventional severe plastic deformation methods, which in principle allow the generation of ultra fine grained microstructures and increasing strength, is limited.
S. Fritsch, M. Scholze, M.F.‐X. Wagner
openaire   +1 more source

Review of Equal Channel Angular Pressing System

Asian Review of Mechanical Engineering, 2016
Equal channel angular pressing (ECAP) is a forming procedure. The Equal Channel Angular Pressing is a hardening treatment with which ductile metals can be processed to refine their grain and sub-grain structure. This process enhances the mechanical strength of metals in terms of tensile strength, stress-controlled fatigue strength, and fatigue crack ...
openaire   +1 more source